#37458F#37458F

#37458F is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.0% C 0.123 H 272.0°. Best body text is #FFFFFF at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#37458F
RGB	rgb(55, 69, 143)
HSL	hsl(230, 44%, 39%)
HSV	hsv(230, 62%, 56%)
CMYK	cmyk(61.5%, 51.7%, 0%, 43.9%)
CIE-LAB	lab(31.92, 18.43, -42.85)
CIE-LCH	lch(31.92, 46.64, 293.27°)
OKLab	oklab(42.01% 0.0044 -0.1226)
OKLCH	oklch(42.01% 0.123 272)
XYZ	xyz(8.6600, 7.0509, 26.8859)
Luminance	0.0705 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37458F #8F8137

analogous

#37718F #37458F #55378F

triadic

#37458F #8F3745 #458F37

tetradic

#37458F #8F3771 #8F8137 #378F55

square

#37458F #8F3771 #8F8137 #378F55

split-complementary

#37458F #8F5537 #718F37

monochromatic

#151A37 #263063 #37458F #4A5CB9 #7683CA

Accessibility & contrast

On white

8.71

#37458F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#37458F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37458F

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37458F	#FFFFFF	#000000	##FFFFFF
##37458F	1.00	8.71	2.41	8.71
#FFFFFF	8.71	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D4F92

Deuteranopia (green-blind)

#09478D

Tritanopia (blue-blind)

#005663

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #37458f;
/* rgb */ color: rgb(55, 69, 143);
/* oklch */ color: oklch(42.0% 0.123 272.0);

Tailwind

colors: {
  custom: {
    50: '#7678b0',
    500: '#37458f',
    950: '#000000',
  },
}

SCSS

$custom: #37458f;
$custom-light: #7678b0;
$custom-dark: #000000;

JSON

{
  "hex": "#37458f",
  "rgb": {
    "r": 55,
    "g": 69,
    "b": 143
  },
  "hsl": {
    "h": 230.455,
    "s": 44.444,
    "l": 38.824
  },
  "oklch": {
    "l": 0.42009,
    "c": 0.12272,
    "h": 272
  },
  "luminance": 0.07052
}

Semantic roles & 50–950 ramp

primary

#37458F

secondary

#B3A86F

accent

#C054D4

background

#F7F7FA

surface

#EEEDF5

border

#C9C8CF

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #37458F

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →